<template>
  <view>
  <view class="goods-list">
   <view v-for="(goods,i) in goodsList" :key="goods.cat_id" @click="gotodetail(goods)">     
     <my-goods :goods="goods"></my-goods>
   </view>
    
  </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //请求参数对象
        queryObj:{
          query:'',
          cid:'',
          pagenum:1,
          pagesize:10
        },
        goodsList:[],
        total: 0,
        //节流阀
        isloading: false
      }
    },
    onLoad(options){
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      //获取商品列表
      this.getGoodsList()
    },
    methods:{
      // 发起请求获取商品列表
      async getGoodsList(cb){
        // 打开节流阀
        this.isloading = true
        const {data: res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
        // 关闭节流
        this.isloading = false
        if(res.meta.status !== 200) return $uni.$showMsg()
        cb && cb()
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
      },
      //跳转详情页
      gotodetail(goods){
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id='+ goods.goods_id
        })
      }
    },
    //上拉加载
    onReachBottom(){
      if(this.queryObj.pagenum*this.queryObj.pagesize>=this.total) return uni.$showMsg('数据加载完毕')
      if(this.isloading) return
      //让页码值自增加1
      this.queryObj.pagenum++
      this.getGoodsList()
    },
    //下拉加载
    onPullDownRefresh(){
      //重置关键技术
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodList = []
      
      //重新发起数据请求
      this.getGoodsList( () => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
